Ruling · Rukmiṇī Dvādaśī · 2016

Wednesday 18 May

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 467 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Tuesday 17 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:13  12:01 madhyāhna ends
10:2510:4911:1311:3712:0112:2512:49

0 of 48 minutes covered

Midday of Wednesday 18 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:13  12:01 madhyāhna ends
10:2510:4911:1311:3712:0112:2512:49

48 of 48 minutes covered

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 19:48 on Tue 17 May to 22:22 on Wed 18 May.

    2016-05-17T11:47:51Z → 2016-05-18T14:22:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 17th, 11:13–12:01 on the 18th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 28025 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Daqing, 2016: Wednesday 18 May.

    confidence: determinate

Say it like this

In Daqing, Rukmiṇī Dvādaśī 2016 falls on Wednesday 18 May. Dvādaśī runs from 19:48 on Tue 17 May to 22:22 on Wed 18 May and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2016/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 May
Ahargaṇa, classicalDisc centre, no refractionWed 18 May
compat-drikpanchangComparison profileWed 18 May
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/rukmini-dvadashi · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles04:48 → 07:2212:2648 min12:260 min17 May
Chicago06:48 → 09:2212:2348 min12:230 min17 May
Jersey City07:48 → 10:2212:2948 min12:290 min17 May
Port of Spain07:48 → 10:2211:3948 min11:390 min17 May
London12:48 → 15:2212:3334 min12:3348 min17 May
Durban13:48 → 16:2211:280 min11:2848 min18 May
Dubai15:48 → 18:2211:510 min11:5148 min18 May
Delhi17:18 → 19:5211:540 min11:5448 min18 May
Kolkata17:18 → 19:5211:090 min11:0948 min18 May
Singapore19:48 → 22:2212:370 min12:3748 min18 May
Sydney21:48 → 00:2211:270 min11:2748 min18 May
Suva23:48 → 02:2211:390 min11:3948 min18 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rukmini-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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